ADHD bifactor model based on parent and teacher ratings of Malaysian children
- Authors: Gomez, Rapson
- Date: 2014
- Type: Text , Journal article
- Relation: Asian Journal of Psychiatry Vol. 8, no. 1 (2014), p. 47-51
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Malaysian parent and teacher ratings of the oppositional defiant disorder symptoms : Measurement invariance and parent-teacher agreement
- Authors: Gomez, Rapson
- Date: 2014
- Type: Text , Journal article
- Relation: Asian Journal of Psychiatry Vol. 11, no. (2014), p. 35-38
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- Description: BACKGROUND: This study evaluated the measurement invariance and agreement across parent and teacher ratings of the DSM-IV-TR oppositional defiant disorder (ODD) symptoms. METHOD: Malaysian parents and teachers of 934 children (between 6 and 11 years of age) completed rating scales comprising the ODD symptoms. RESULTS: Findings showed support for full measurement invariance (configural, metric and thresholds). Additional results indicated low parent-teacher agreement for all symptoms. DISCUSSION: The theoretical and clinical and implications of these findings are discussed.
Teacher ratings of ODD symptoms: Measurement equivalence across Malaysian Malay, Chinese and Indian children
- Authors: Gomez, Rapson
- Date: 2014
- Type: Text , Journal article
- Relation: Asian Journal of Psychiatry Vol. 8, no. 1 (2014), p. 52-55
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- Description: Background The study examined the measurement equivalence for teacher ratings across Malaysian Malay, Chinese and Indian children. Methods Malaysian teachers completed ratings of the ODD symptoms for 574 Malay, 247 Chinese and 98 Indian children. Results The results supported the equivalences for the configural, metric, and error variances models, and the equivalences for ODD latent variances and mean scores. Discussion Together, these findings suggest good support for measurement and structural equivalences of the ODD symptoms across these ethnic groups. The theoretical and clinical implications of the findings for cross-cultural equivalence of the ODD symptoms are discussed.
Factor structure of parent and teacher ratings of the ODD symptoms for Malaysian primary school children
- Authors: Gomez, Rapson
- Date: 2017
- Type: Text , Journal article
- Relation: Asian Journal of Psychiatry Vol. 25, no. (2017), p. 22-26
- Full Text: false
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- Description: This present study used confirmatory factor analysis (CFA) to examine the applicability of one-, two- three- and second order Oppositional Defiant Disorder (ODD) factor models, proposed in previous studies, in a group of Malaysian primary school children. These models were primarily based on parent reports. In the current study, parent and teacher ratings of the ODD symptoms were obtained for 934 children. For both groups of respondents, the findings showing some support for all models examined, with most support for a second order model with Burke et al. (2010) three factors (oppositional, antagonistic, and negative affect) as the primary factors. The diagnostic implications of the findings are discussed. © 2016 Elsevier B.V.
Greek validation of the factor structure and longitudinal measurement invariance of the strengths and difficulties questionnaire-self report (SDQ-SR) : exploratory structural equation modelling
- Authors: Gomez, Rapson , Motti-Stefanidi, Frosso , Jordan, Scott , Stavropoulos, Vasileios
- Date: 2021
- Type: Text , Journal article
- Relation: Child Psychiatry and Human Development Vol. 52, no. 5 (2021), p. 880-890
- Full Text: false
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- Description: The study examined the factor structure and longitudinal measurement invariance over three time points (1-year apart) of the Strengths and Difficulties Questionnaire-Self Report (SDQ-SR) for ratings provided by adolescents in Greece. It used exploratory structural equation modelling (ESEM) to achieve these two goals. At time point one, a total of 968 adolescents (males = 508, and females = 460) between 12 and 17.9 years completed the SDQ-SR. In relation to factor structure, ESEM tested the fit of one- to five-factor models. The findings were interpreted as indicating most support for the ESEM model with three factors (the factors being dysregulation, peer problems, and prosocial behaviour). This model showed support for configural invariance and full metric invariance across the three time points. Except for two thresholds, all other thresholds were also invariant across the three time points. Thus, there was good support for longitudinal measurement invariance. The implications of the findings for use of the SDQ-SR are discussed. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.
In search of the optimum structural model for internet gaming disorder
- Authors: Stavropoulos, Vasileios , Gomez, Rapson , Griffiths, Mark
- Date: 2021
- Type: Text , Journal article
- Relation: BMC Psychiatry Vol. 21, no. 1 (2021), p.
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- Description: Background: Internet gaming Disorder (IGD) constitutes a recently proposed clinical disorder (American Psychiatric Association, Diagnostic and statistical manual of mental disorders, 2013). The present study examined if IGD is best conceptualized as categorical (present/absent), or dimensional (severity ranging from low to high), or both (i.e., hybrid of categorical/dimensional). Methods: Ratings of the nine DSM-5 IGD symptoms, as presented in the Internet Gaming Disorder Scale 9-Short Form (Pontes & Griffiths, Comput Hum Behav 45:137-143, 2015), from 738 gamers, aged 17 to 72 years, were collected. Confirmatory factor analysis (CFA), latent class analysis (LCA), and factor mixture modelling analysis (FMMA) procedures were applied to determine the optimum IGD model. Results: Although the findings showed most support for a FFMA model with two classes and one factor, there was also good statistical and substantive support for the one-factor CFA model, and the LCA model with three classes. Conclusion: It was concluded that while the optimum structure of IGD is most likely to be a hybrid model (i.e., concurrently categorical and dimensional), a uni-dimensional model and/or a three-class categorical model are also plausible. © 2021, The Author(s).
Unraveling the optimum latent structure of attention-deficit/hyperactivity disorder : evidence supporting ICD and HiTOP frameworks
- Authors: Gomez, Rapson , Liu, Lu , Krueger, Robert , Stavropoulos, Vasileios , Downs, Jenny
- Date: 2021
- Type: Text , Journal article
- Relation: Frontiers in Psychiatry Vol. 12, no. (2021), p.
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- Description: Attention Deficit/hyperactivity disorder (ADHD) is conceptualized differently in the Diagnostic and Statistical Manual (DSM-5), the International Classification of Diseases-10 (ICD-10), and the Hierarchical Taxonomy of Psychopathology (HiTOP) frameworks. This study applied independent cluster confirmatory factor analysis (ICM-CFA), exploratory structure equation model with target rotation (ESEM), and the S-1 bi-factor CFA approaches to evaluate seven ADHD models yielded by different combinations of these taxonomic frameworks. Parents and teachers of a community sample of children (between 6 and 12 years of age) completed the Disruptive Behavior Rating Scale (for ADHD symptoms) and the Strengths and Difficulties Questionnaire (for validation). Our findings for both parent and teacher ratings provided the most support for the S-1 bi-factor CFA model comprised of (i) a g-factor based on ICD-10 impulsivity symptoms as the reference indicators and (ii) inattention and hyperactivity as specific factors. However, the hyperactivity-specific factor lacked clarity and reliability. Thus, our findings indicate that ADHD is best viewed as a disorder primarily reflecting impulsivity, though with a separable inattention (but no hyperactivity) component, i.e., “ADID (attention deficit/impulsivity disorder).” This model aligns with the HiTOP proposals. © Copyright © 2021 Gomez, Liu, Krueger, Stavropoulos, Downs, Preece, Houghton and Chen.